Review on 🔍 Mitutoyo 050101 Edge Finder Shank: Ensuring Precise and Accurate Machining by Robert Moloney

This thing works very well, very accurately, and I found I could locate the edge to about 0.001 inches. I made the mistake of driving it hard into the workpiece along the Z axis a few times and it still works! It's also very forgiving when moved horizontally. When using it, I usually spin the spindle at around 100-300 RPM, so misalignment is very noticeable. I've used it against mild steel, aluminum and plastic and there is no visible wear on the tool. I should buy a spare or two.